Fifth disease??

DD has been having running nose since last few days and a cough started two days back. Today her cheeks are bright red and she is having a fever of 100 degrees. I am definitely calling my ped tomorrow but was checking the symptoms online and came across this disease whose symptoms kinda match with what she is having now.
Her fever and the red checks started on the evening after she went to bed. Apart from that she has been acting normal all day . She didn't eat much solids though and I thought it might be because of the sore throat.
Any ideas what she might be having? Anyone else gone through the same?

Sounds like fifth but could also be teething. Fifth disease in my kids was not bad but for adults, it isn't so pleasant. It can be dangerous for pregnant women, it was my luck to get it when pregnant with my last child. Hopefully your LO will be feeling better soon.